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PC74HC257N Datasheet TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI's standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. PC74HC257N Price For the ST24/25W02 versions, anywrite command with WC = 1 will not modify the memory content. Byte Write. In the Byte Write mode the master sends one data byte,which is acknowledged by the memory. The master then terminates the transfer by generating a STOP condition. The Write mode is independant of the state of the MODE pin which could be left floating if only this mode was to be used. However it is not a recommended operating mode, as this pin has to be connected to either VIH or VIL, to minimize the stand-by current. PC74HC257N on stock
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